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9,253 diagnostic guides

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Find codes by symptomChoose what you notice to search matching code guides.

Rough idle or shakingVibration while stopped Hard to startLong cranking or no-start Engine stallsCuts out at idle or on the road Hesitates or loses powerSlow response when accelerating Battery light is onCharging system warning Harsh gear changesDelayed or rough shifting

A symptom can have several causes. Treat matching codes as clues and follow the diagnostic checks in each guide.

Electrical & Charging System P · Powertrain Clear all

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Engine1049 Emissions515 Fuel1016 Sensors & Electronics2110 Transmission866 Electrical & Charging1797 Body & Restraints193 Chassis & Brakes479 Network & Communication1228

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All severities9253 Low priority305 Check soon8256 Urgent621

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All families9253 P · Powertrain7353 B · Body193 C · Chassis479 U · Network1228

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These are generic OBD2 definitions. Exact make, model, engine, and year compatibility will appear after vehicle-fitment data is added.

Diagnostic codes

Showing 1657–1680 of 1797

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P2D6FBattery Charging System Positive Contactor D Control Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D6F relates to battery charging system positive contactor d control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D70Battery Charging System Negative Contactor D CircuitCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D70 relates to battery charging system negative contactor d circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D71Battery Charging System Negative Contactor D Stuck ClosedCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D71 relates to battery charging system negative contactor d stuck closed. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D72Battery Charging System Negative Contactor D Stuck OpenCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D72 relates to battery charging system negative contactor d stuck open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D73Battery Charging System Negative Contactor D Control Circuit/OpenCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D73 relates to battery charging system negative contactor d control circuit/open. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D74Battery Charging System Negative Contactor D Control Circuit Range/PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D74 relates to battery charging system negative contactor d control circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D75Battery Charging System Negative Contactor D Control Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D75 relates to battery charging system negative contactor d control circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D76Battery Charging System Negative Contactor D Control Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D76 relates to battery charging system negative contactor d control circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D77Battery Charger Control Module B PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D77 relates to battery charger control module b performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D78Battery Charger Control Module B Processor PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D78 relates to battery charger control module b processor performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D79Charging Stop Switch CircuitCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D79 relates to charging stop switch circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D7ACharging Stop Switch Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D7A relates to charging stop switch circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D7BCharging Stop Switch Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D7B relates to charging stop switch circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D7CCharging Stop Switch Circuit PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D7C relates to charging stop switch circuit performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D7DCharging Stop Switch Circuit Intermittent/ErraticCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D7D relates to charging stop switch circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D7ECharging Start Switch CircuitCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D7E relates to charging start switch circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D7FCharging Start Switch Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D7F relates to charging start switch circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D80Charging Start Switch Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D80 relates to charging start switch circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D81Charging Start Switch Circuit PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D81 relates to charging start switch circuit performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D82Charging Start Switch Circuit Intermittent/ErraticCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D82 relates to charging start switch circuit intermittent/erratic. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D83Battery Charger B Input Current Sensor Circuit LowCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D83 relates to battery charger b input current sensor circuit low. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D84Battery Charger B Input Current Sensor Circuit HighCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D84 relates to battery charger b input current sensor circuit high. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D85Battery Charger B Input Current Sensor Circuit Range/PerformanceCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D85 relates to battery charger b input current sensor circuit range/performance. Check the fault conditions and vehicle-specific procedure before replacing parts.P2D89Fan 1 Control Module Supply Voltage CircuitCheck soonElectrical & Charging System30–120 minutes for initial diagnosisP2D89 relates to fan 1 control module supply voltage circuit. Check the fault conditions and vehicle-specific procedure before replacing parts.